'use strict';

const fs = require('fs');

const mkdirp = require('mkdirp');

const path = require('path');

exports.appendFile = function(file, content) {

const parts = path.parse(file);

if (!fs.existsSync(parts.dir)) {

mkdirp.sync(parts.dir);

}

// TODO(joyeecheung): what if the file is a dir?

fs.appendFileSync(file, content, 'utf8');

};

exports.writeFile = function(file, content) {

const parts = path.parse(file);

if (!fs.existsSync(parts.dir)) {

mkdirp.sync(parts.dir);

}

// TODO(joyeecheung): what if the file is a dir?

fs.writeFileSync(file, content, 'utf8');

};

exports.writeJson = function(file, obj) {

exports.writeFile(file, JSON.stringify(obj, null, 2));

};

exports.readFile = function(file) {

if (fs.existsSync(file)) {

return fs.readFileSync(file, 'utf8');

}

return '';

};

exports.readJson = function(file) {

const content = exports.readFile(file);

if (content) {

return JSON.parse(content);

}

return {};

};